Fuel tank leak

john in la · Dec 13, 2014

U-Joint give out in a SIL pickup. Drive shaft hit fuel tank denting it and causing a very slow leak. It is so slow it does not drip as the gasoline is evaporation before enough leaks to form a drip; but tank is now damp and you can definitely smell the gas in the air.

Anything I can apply to the outside of tank that may stop this leak.
I am about to go outside and wipe the tank down; blow it off with compressed air to dry it and find the leaking spot.

Super Trucker · Dec 13, 2014

Run it out off gas or jack it up to prevent gas from touching the hole. Then get some JB WELD and go to town and let dry for 24 hrs. It works great did it on my alum fuel tank of a semi. 2yrs and holding.

JMS/.MN · Dec 13, 2014

I"ve patched under the straps with multiple layers of fiberglas mat and JB weld. Held for many years now. I"ve heard of applying vacuum to a loaded tank, wiping outside dry, and applying JB weld. Maintain vacuum until hardened.

JD Seller · Dec 13, 2014

Product called Seal All. Made for petroleum products.

jon f mn · Dec 13, 2014

Napa sells a 2 part puddy kit that you can use with gas leaking. I've used it a couple times and it works great. It's been on my tractor tank for 20 years

teddy52food · Dec 13, 2014

When you find the leak, just rub a bar of hard soap to stop the lead. Then use JB weld or bondo to fix.

notjustair · Dec 13, 2014

I went to the auto parts place and asked which patch kit they sell most often. Bought that and repaired a tractor tank years ago. All is good. It was a two part expoxy the consistency of JB weld.

old · Dec 13, 2014

O'Reilly's sells a 2 part epoxy that can be applied to a wet tank as long as the area is clean that works well

DoubleR · Dec 13, 2014

I'm with JD. Seal All You can buy it anywhere.
I fixed an old tank on a pickup. It was still holding when I sold the truck several years later.

UncleTom · Dec 13, 2014

I have used liquid steel where the bands rust the tank that hold the tank in place. Works good.

Determined · Dec 13, 2014

Like JD Seller said use Seal All
Saturate a piece of blue jean material with it and put it on.
When I was a teenager the old tank on my pick-up was covered in these patches.
Never had to fix the same spot twice.

howdy1960 · Dec 13, 2014

I used to use Lava hand soap by filling hole then bondo over it after cleaning surrounding area well. Tank repair out lived the cars frame. Too bad haven't seen lava in my area in years cause it cleaned hands after tank repairs pretty good too.

CKain(MI) · Dec 13, 2014

JB Weld works well, esp on Aluminum. I have good results with fiberglass and resin, But that is messy. Next time I will try Seal-All.

Stephen Newell · Dec 13, 2014

I would remove the tank from the vehicle and clean it out and pour in Red Kote fuel tank liner in it. It's a liquid kind of like paint that you just tip the tank at different angles until the stuff completely covers the tank and pour out the excess and let dry. I've had gas tanks that had hundreds of pin hole leaks in the bottom and the Red Kote fixed it.

super99 · Dec 13, 2014

I 2nd the motion on the Seal All, works great!!!

Fuel tank leak

john in la

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Super Trucker

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JMS/.MN

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JD Seller

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jon f mn

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teddy52food

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notjustair

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old

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DoubleR

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UncleTom

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Determined

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howdy1960

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CKain(MI)

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Stephen Newell

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super99

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